理学 >>> 地质学 >>> 数学地质学 地质力学 动力地质学 矿物学 矿床学与矿相学 岩石学 岩土力学 沉积学 古地理学 古生物学 地层学与地史学 前寒武纪地质学 第四纪地质学 构造地质学 大地构造学 勘查地质学 水文地质学 遥感地质学 区域地质学 火山学 石油与天然气地质学 煤田地质学 实验地质学 地球化学 地质学其他学科
搜索结果: 1-15 共查到地质学 quartz相关记录33条 . 查询时间(0.062 秒)
The mechanisms of quartz dissolution are affected intricately by pH conditions and electrolyte types. Most previous studies have focused on the mechanisms of quartz dissolution under one specific con...
The Role of Extensional Fractures and Quartz Veins in the Formation of Kaolin Deposit From the Dwyka Tillite in Grahamstown, Eastern Cape Province, South Africa.
New Sr-Nd-O isotopic data are reported for the early Triassic (early Indosinian) Weiya quartz syenite from eastern Central Tianshan, northwestern China, with the aim of documenting its possible source...
The roundness and surface texture of quartz grains were studied in Devonian sediments of 32 drill cores. Roundness was estimated in more than 800 samples and surface textures were examined under scann...
The Baranadağ quartz monzonite is one of the granitioid intrusions of the Central Anatolian Crystalline Complex (CACC) which represents the passive continental margin of the Anatolide-Tauride pl...
Optical emission of MgSiO3 glass, enstatite, olivine, and quartz under shock wave compression was investigated with optical pyrometry at discrete wavelengths ranging from visible to near infrared. W...
Oxygen isotope thermometry based on fractionations among quartz, garnet, kyanite, silliman- ite, and potassium feldspar in amphibolite to granulite facies schists and gneisses was compared to thermo...
Enthalpies of drop-solution (?H ) of a suite of stuffed quartz-derivative phases with the compo-drop-soln Al Si O (0 ? x ? 1) have been measured in molten 2PbO°§ O at 974 K. Substitution of sition...
Quartz°(TM)one of the most abundant minerals in the Earth°Os crust°(TM)has been deemed a human c cinogen by the International Agency for Research on Cancer (IARC), with the main threat to humans bei...
For iron-rich compositions, reactions among titanite, clinopyroxene, olivine, quartz,magnetite, and ilmenite can constrain the conditions under which common rocks form.Phase equilibrium experiments in...
The heat capacities of synthetic coesite and jadeite were measured between about 15 and 850 K by adiabatic and differential scanning calorimetry. The experimental data were smoothed and estimates were...
Spontaneous strains for the a ↔b transition in quartz were determined from lattice parameter data collected by X-ray powder diffraction and neutron powder diffraction over the temperature range ...
The reaction of phlogopite plus quartz to enstatite, potassium feldspar, and aqueous fluid in the system KMASH-KCl was reversed at 2?2 kbar and 750?75 8C and at low H2O activities by reversal of the H...
Memory effects ass~iated with the Dauphine twins in a quartz and the c-antiphase domains (c-APDs) in PI anorthite have been investigated by in situ hot-stage transmission electron microscopy (TEM). ...
Formation of Fe-coatings or segregation at the expense of quartz grains is a common process in the tropical environment. Limited information is available about their internal structure at the submicro...

中国研究生教育排行榜-

正在加载...

中国学术期刊排行榜-

正在加载...

世界大学科研机构排行榜-

正在加载...

中国大学排行榜-

正在加载...

人 物-

正在加载...

课 件-

正在加载...

视听资料-

正在加载...

研招资料 -

正在加载...

知识要闻-

正在加载...

国际动态-

正在加载...

会议中心-

正在加载...

学术指南-

正在加载...

学术站点-

正在加载...